From an engineering perspective, a capital good's service is energy conversion - e.g., the physical 'work' done by a machine - and can thus be measured directly by the energy consumed in production. We show important empirical advantages of our concept over traditional measures. The empirical...

From an engineering perspective, a capital good’s service is energy conversion - e.g., the physical 'work' done by a machine - and can thus be measured directly by the energy consumed in production. We show important empirical advantages of our concept over traditional measures. The empirical...

This paper estimates production functions with factor interaction for annual US output from 1949 to 2013 including energy Btu input with capital and labor. Interactions between the three factors are parsimoniously introduced to the error correction estimates. The findings are as follows: Fixed...